December weather forecast
Waigani, Papua New Guinea

Wrapping up the weather year in Waigani, December presents a warm and wet climate. Echoing the trends of a tropical city, the temperatures, hitting a high of 30.2°C (86.4°F), peak in December, outdoing all the previous months. Correspondingly, rainfall also sees a hike, culminating into denser cloud cover across the city. The availability of sunshine dips slightly while wind speeds reduce, serving as a subtle herald for the upcoming weather transitions in the new year.

Temperature

Waigani experiences its highest temperatures in December, with an average peak of 30.2°C (86.4°F) and a low of 24.5°C (76.1°F).

Heat index

The heat index value during December is estimated at a torrid 37°C (98.6°F). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gives a temperature feeling by integrating air temperature and humidity. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

In December, the average relative humidity in Waigani is 75%.

Rainfall

In December, the rain falls for 22.3 days. Throughout December, 106mm (4.17") of precipitation is accumulated. In Waigani, during the entire year, the rain falls for 249.8 days and collects up to 1311mm (51.61") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 42min of daylight.
On the first day of the month, sunrise is at 05:41 and sunset at 18:19. On the last day of December, in Waigani, sunrise is at 05:54 and sunset at 18:34 +10.

Sunshine

The average sunshine in December in Waigani is 10.9h.

UV index

January, March through May, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum daily UV index of 7 during December morphs into the following directions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.